Benchmark HCM400 User manual

2620-176
READ ALL INSTRUCTIONS BEFORE FIRST USE.
KEEP THIS MANUAL FOR FUTURE REFERENCE.
KEEP AWAY FROM CHILDREN.
5AMP • 25HP
CEMENT MIXER
OWNER'S MANUAL

1
CEMENT MIXER - OWNER'S MANUAL
PRODUCT SPECIFICATIONS
Model Number HCM400
Motor: 120V~60Hz, 5A
Drum Capacity 115 Liters / 25 gallons
Drum Mouth 385 mm
Drum Speed 26.7 / min
Overall Sizes Length 1200 mm / 47"
Width 710 mm / 28"
Height 1350 mm / 53"
Weight 45 kg / 99 lbs
ELECTRICAL CONNECTION
This mixer is double insulated to Class II protection and IP44D rated.The insulation will
only remain effective if the original insulating parts are used for repairs and the spaces
between the original insulation are maintained.
This mixer is double insulated to Class II protection and IP44D rated. Assembly
and disassembly of the enclosure of electric control are critical to keep them remain
effective. Only qualified electrician is allowed to repair the enclosure of electric control.
Double insulation eliminates the need for the three-wire grounded power cord and
grounded power supply system. Double insulated tools can use either a two or three
wire extension cord.
Double insulation eliminates the need for the three-wire grounded power cord and
grounded power supply system. Double insulated tools can use either a two or three wire
extension cord.
Do not connect either core to the earth pin.

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2620-176
TABLE OF CONTENTS
Product specifications
Electrical Connection
Table of contents
Safety Warnings & Instructions
Contents of Shipping Container
Assembly Instructions
Operating Instructions
Maintenance Instructions
Wiring Diagram
Parts Schematic
Parts List
Warranty
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CEMENT MIXER - OWNER'S MANUAL
SAFETY WARNINGS & INSTRUCTIONS
UNDERSTANDYOUR MIXER
Read and understand the owner’s manual and labels affixed to the
mixer. Learn its application and limitations as well as the specific
potential hazards peculiar to it. Become familiar with the controls
before operating this mixer.
STAY ALERT
Do not operate the mixer while under the influence of drugs, alcohol,
or any medication that could affect your ability to use it properly. Do
not use this mixer when you are tired or distracted from the job at
hand. Watch what you are doing at all times. Use common sense.
AVOID DANGEROUS CONDITIONS
Make sure there is adequate surrounding workspace. Keep your
work area clean and well lit. Cluttered areas invite injuries. Keep
area around the mixer clear of obstructions, grease, oil, trash and
other debris which could cause persons fall onto moving parts.
Only use or operate the mixer on solid, flat, level ground that is ca-
pable to support the weight of the mixer and its load to prevent the
mixer from tipping over. Do not attempt to move the mixer when it
is loaded and/or in operation.
This mixer is intended for the production of concrete, mortar and
plaster. It is not suitable for the mixing of flammable or explosive
substances. Do not use it in areas where fumes from paint, solvents
or flammable liquids pose a potential hazard.
INSPECTYOUR MIXER
Check your mixer before turning it on. Keep guards in place and
in working order. Do not plug mixer with motor cover off. Check
all bolts, nuts, and screws for tightness before each use, especial-
ly those securing guards and drive mechanisms. Vibration during
mixing may cause these to loosen. Form a habit of checking to see
that all the adjusting tools, shovels, hand trowels and other tools/
equipments are removed from mixer area before turning it on. Re-
place damaged, missing or failed parts before using it. Warning la-
bels carry important information. Replace any missing or damaged
warning labels.
DRESS PROPERLY
Do not wear loose clothing, gloves, neckties or jewelry (rings, wrist
watches).They can be caught in moving parts. Protective electrical-
ly nonconductive gloves and nonskid footwear are recommended
when working. Wear protective hair covering to contain long hair,
preventing it from getting caught in machinery. Wear a face or dust
mask if the operation is dusty. Always wear safety goggles and/or
face shields. Everyday eyeglasses have only impact resistant lens-
es.They are not safety glasses.

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2620-176
DO NOT ABUSE CORD
Never carry mixer by cord or yank it to disconnect it from socket.
Keep cord from heat, oil and sharp edges.
EXTENSION CORDS
Extension cords must be no longer than 50 m/164' in length. The
wire section must be 1.5mm2/ 3/64"2on 120V to allow sufficient 2
current flow to the motor. Improper use of extension cords may
cause inefficient operation of the mixer which can result in over-
heating and motor damage. Only extension cords to H07RN-F spec-
ification intended for outdoor purpose may be used. Avoid use of
free and inadequately insulated connections. Connections must be
made with protected material suitable for outdoor use. Make sure
that any extension cord connections are dry and safe. Ensure that
the extension cord is carefully laid out avoiding liquids, sharp edg-
es and places where vehicles might run over it. Avoid allowing the
extension cord to be trapped underneath the mixer. Unroll it fully or
it will overheat and could catch fire.
AVOID ELECTRICAL SHOCK
Check that the electric circuit is adequately protected and that it cor-
responds with the power, voltage and frequency of the motor. Do
not plug or unplug the motor while standing in or around damp or
wet ground. Do not use the mixer in wet or damp areas or expose
it to rain. Prevent body contact with grounded surfaces: pipes, radi-
ators, ranges, and refrigerator enclosures. Make sure your fingers
do not touch the plug’s metal prongs when plugging or unplugging
the mixer.
KEEP VISITORS AND CHILDREN AWAY
Keep unauthorized persons away from the mixer. Do not allow chil-
dren to handle or climb on or in the mixer.
DO NOT OVERREACH
Keep proper footing and balance at all times when loading or un-
loading the mixer. Never stand on mixer. Serious injury could oc-
cur if the mixer is tipped or if the moving parts are unintentionally
contacted. Do not store anything above or near the mixer where
anyone might stand on the mixer to reach them.
AVOID INJURY FROM UNEXPECTED ACCIDENT
Keep hands out of the way of all moving parts. Do not place any
part of your body or any tool, like shovel in the drum during oper-
ation. When operating, do not pass hands through the clearance
between frame and support arm or the one between the drum and
support arm.
DON'T FORCE TOOL
It will do a better and safer job at its design rate. Always work within
the rated capacity. Do not start the motor if the drum is fully loaded.

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CEMENT MIXER - OWNER'S MANUAL
Do not turn mixer off while full of concrete. Do not use the mixer
for a purpose for which it was not intended. The mixer is not to be
towed by any vehicle.
NEVER LEAVE MIXER RUNNING UNATTENDED
Do not leave mixer until it has come to a complete stop.
DISCONNECT POWER
Never open the motor cover before unplugging the mixer. Discon-
nect from power supply when not in use, before moving, making
adjustments, changing parts, cleaning, or working on the mixer.
Consult technical manual before servicing.
MAINTAINYOUR MIXER WITH CARE
Clean the mixer immediately after use. Keep the mixer clean for
best and safest performance. When maintaining this mixer, only the
manufacturer’s original replacement parts may be used.
PROTECT THE ENVIRONMENT
Take leftover materials to an authorized collection point or follow
the stipulations in the country where the mixer is used. Do not dis-
charge into drains, soil or water.
STORE IDLE EQUIPMENT
When not in use, the mixer should be stored in a dry location to
inhibit rust. Keep the mixer away from children and others not qual-
ified to use it.

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CONTENTS OFTHE SHIPPING CONTAINER
A
B
C
D
E
F
G
H
I
2
6
2
1
1
2
4
2
2
2
4
M8 70
M8 70
M8 65
M8 20
M8 20
M8 20
M8 25
M10 65
M8
142
1

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CEMENT MIXER - OWNER'S MANUAL
ASSEMBLY INSTRUCTIONS
It is recommended that two people assist in the assembly.
THE STAND
1. With a split pin inserted into the in-
ner holes in each stub axle, place a
flat washer, then a wheel followed
by another flat washer. Insert an-
other split pin into the axle holes
outside each flat washer. Bend
each side of the pins outward so
they do not fall out.
A
4
B
2
M8 70
C
2
M8 70
2. With the frame lying on its side, at-
tach the support leg as shown. In-
sert two M8X70 hex bolts through
the holes from one side, then flat
washers, lock washers and nuts
from the other side.
3. Turn the frame over and attach the
axle bracket with wheels in the
same manner.
4. Make sure all bolts and nuts are
tightened.

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THE BOTTOM DRUM
THE MIXING BLADES
THE UPPER DRUM
1. Slide the bearing block on the
shaft. Hold it in place with Ø 42
spiral ring.
2. Carefully, and with two people,
set the bottom drum with support
arm onto the side supports of the
stand as shown, so that the bear-
ing blocks slot into the channels
provided by the side supports. The
larger diameter shaft should be at
the leg end of the stand.
3. At each side, line up the holes in
the side support with those in the
bearing block and insert a M8X65
hex bolt from one side, then a
flat washer, lock washer and nut
from the other side. Tighten with
a wrench.
Mount the mixing blades inside the bot-
tom drum loosely as shown -Two holes
are provided at the base of the drum into
which a M8X20 bolt may be inserted
from the outside. A leather washer, flat
washer, lock washer and a nut should be
threaded on loosely on the inside. The
leather washer should be placed under
the blade down against the drum.
NOTE: Two arrows are labeled on upper
drum and bottom drum to make their
position relative. If you have any diffi-
culty in correctly positioning the mixing
blades, it is helpful if you temporarily
mount the upper drum on the top of the
bottom drum, rotating it so that the two
arrows line up.
1. Position the upper drum on bottom
drum over the rim, making sure the
mounting holes align in both as
well as the labeled arrows.
D
2
M8 65
142
E
2
M8 20
F
6
2
M8 20
M8 20

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CEMENT MIXER - OWNER'S MANUAL
2. Insert a M8X20 cross headed screw
into each mounting hole in the rim.
Secure each bolt from below with
a flat washer, lock washer and nut.
Make sure the tightening prOcess is
carried out progressively.
3. Secure the mixing blades to the
upper drum by inserting two
M8X20 cross headed screws, from
the outside through the holes in
the drum.
4. A leather washer should be posi-
tioned inside between the drum
and blade. Secure the mixing
blade on the inside using a flat
washer, spring washer and nut.
5. Finally, ensure top and bottom
mixing blade mountings are tight.
1. Slide the locking plate over the
large diameter shaft at the leg end
of the frame with the rim facing in-
wards as shown. Secure with two
M8X25 bolts, each with a nut, lock
and flat washers.
2. Insert the spring into the bar pipe.
Holding it in place with a finger,
place the bar over the larger diam-
eter shaft so that the shaft retains
the spring. Press down on bar
until the holes in the bracket line
up with the hole drilled. Insert a
M10X65 hex bolt and screw on a
nut with flat washers from the oth-
er side. Screw the nut up against
the bracket firmly, but not so tight-
ly so as to prevent the bar from
pivoting about the bolt.
G
2
M8 25
THE TIPPING BAR
H
1
1
M10 65

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Lining up the keyways, slide the transmis-
sion case over the pinion shaft. Secure the
case to the frame with four M8 lock nuts.
OPERATING
INSTRUCTIONS
DRUM TILTING
The spring-loaded tipping bar with
locking lugs provides an easy posi-
tive control of the drum which can be
locked in the mix, discharge and stored
position.
The drum is locked in position by lugs
on the self-locating tipping bar/wheel
which engage into the locking plate on
the mixer frame.To tilt the drum, with-
drawn the tipping bar to dis-engage
the locking lugs.This then allows the
tipping bar and drum to be turned in
the same direction.
To retain the drum in position, align-
ing the lugs with the slots, release the
tipping barl a little while retaining the
drum. Rotate the tipping bar until the
locking lugs engage into the locking
plate on the mixer frame.
THE TRANSMISSION CASE LOADING/MIXING POSITION
For Mortar For Concrete
EMPTYING
POSITION
STORAGE
POSITION
I
4
M8

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CEMENT MIXER - OWNER'S MANUAL
LOADING
Completely unwind the extension
cord. Connect it to the concrete mixer
first before plugging in power supply.
Always start the mixer before
loading the drum. Loading the drum
with drum rotating.
Do not throw material into the
mixer to avoid sticking firmly to the
back of the drum.Trickle it steadily over
the ram.
NOTE: A built-in thermal protector is
arranged in the motor to prevent it
from overheating.The thermal protec-
tor restores automatically when the
motor cools down.
For best results, proceed as follows:
1. Add the required amount of gravel
into the drum.
2. Add the required amount of ce-
ment into the drum.
3. Add the required amount of sand
into the drum.
4. Pour the required amount of water
into the drum.
EMPTYING
Do not turn mixer off while full of
load. Emptying the drum with drum
rotating.
CLEANING
Never put hands inside the drum
with drum rotating.
Thoroughly clean the mixer at the end
of each day’s operation. Keep your
mixer clean.The slightest trace of ma-
terial left in the drum will harden and
attract more each time you use it until
the machine is useless. Dried cement
should be scraped out of the drum.
Do not throw bricks into mixer drum
to clean it out. Do not beat on the drum
with a shovel, a hammer or other tools
to break up accumulations of dried ce-
ment mix, as damage to the mixer may
result.The drum may be scoured for
approximate 2 minutes, using 1” gravel
and water mixture.Then discharge the
gravel/water mixture and hose down
the drum assembly inside and out.The
IP44D protection class construction of
the concrete mixer enables you to hose
down the drum assembly safely.
Do not pour or spray water directly
over the motor cover, especially the
openings in it.
Wipe off any external material
on the motor cover. Do not use petrol,
turpentine, lacquer or paint thinner, dry
cleaning fluids or similar products.The
use of chemical products or solvents
may affect the properties of the cover
which was made of high density poly-
ethyiene PET.
MAINTENANCE
INSTRUCTIONS
Ensure the extension cord is always
unplugged before the motor cover is
removed.
The drive belt is under constant even
tension by a spring loaded jockey. No
adjustment apart from a touch of grease
on the spindle.
The bearings are sealed for life.
The wiring diagram and parts sche-
matic in this manual are as reference
tools only. Neither the manufacturer nor
distributor makes any representation or
warranty of any kind to the buyer that he
or she is qualified to make any repairs to
the product or that he or she is qualified
to replace any parts of the product. Only
qualified technicians should repair the
mixer. Any maintenance and repairs

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2620-176
carried out, to any of the electric
components must be undertaken by a
qualified electrician.
Parts in a circle should only be
fitted by a qualified electrician.
WIRING DIAGRAM

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CEMENT MIXER - OWNER'S MANUAL
PARTS SCHEMATIC

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PARTS LIST
WARNING: When servicing, use only original equipment replacement parts.
The use of any other parts may create a safety hazard or cause damage to the
log splitter.
Any attempt to repair or replace electrical parts on this log splitter may create a
safety hazard unless repairs are performed by a qualified technician.
Customer Service /Tech Support 1-866-206-0888.
1 Cross Headed 10
Screw M8x20
2 Waterproof Washer 4
3 Flat Washer 8 22
4 Spring Washer 8 18
5 Nut M8 18
6 Upper Drum 1
7 Mixing Blade 2
8 Rubber Gasket 1
9 Lower Drum 1
10 Axle Bracket 1
11 Wheel 2
12 Flat Washer 27 4
13 Cotter Pin 5X40 4
14 Frame 1
15 Support Leg 1
16 Bolt M8X70 4
17 Bearing Block - Right 1
18 Circlip 42 1
19 O-Ring 1
20 Gear Guard - Long 1
21 Drive Shaft 1
22 Sleeve Pipe 2
23 Cradle 1
26 Bearing 6206 2
27 Circlip 62 3
28 Circlip 30 1
29 Lock Pin 5X40 1
30 Self Tapping Screw 3
ST4.2X13
31 Drive Pinion 1
32 Gear Guard - Short 1
33 Circlip 42 1
34 Bearing 6202 2
35 Circlip 15 1
36 Lock Nut M8 4
37 Bolt M8X65 2
38 Circlip 38 2
39 Bearing Block - Left 1
40 Lock Nut M10 1
41 Flat Washer 10 2
43 Spring 1
44 Hex head bolt 1
M10X65
45 Tipping Bar 1
46 Handle Grip 1
47 Bolt M8X25 5
48 Locking Plate 1
49 Power Cord 1
50 Strain Relief Nut 1
51 Strain Relief Rubber 1
52 Strain Relief Bolt 1
No. Description Qty. No. Description Qty.

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CEMENT MIXER - OWNER'S MANUAL
53 Strain Relief Nut 1
54 Gasket, Switch 1
55 Switch 1
56 Motor Cover 1
57 Motor 1
58 Idle Pulley 1
59 Belt 1
60 Bearing 6906 2
61 Snap Washer 1
– Hole 47
62 Self Tapping Screw 6
ST4.2X16
63 Circlip 30 1
64 End Plate 1
65 Bolt M8X25 3
66 Motor Mount Bracket, 1
End Plate
67 Gasket 1
68 Self Tapping Screw 2
ST3.5X16
71 Oil seal 62x35x8 1
72 Fixed Shaft 1
73 Washer 1
74 Spring Washer 12 1
75 Bolt M12x35 1
No. Description Qty.

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WARRANTY
BENCHMARK CEMENT MIXER WARRANTY
If this Benchmark tool fails due to a defect in material or workmanship within
five years from the date of purchase, return it to any Home Hardware store with
the original bill of sale for exchange. This warranty does not include expendable
parts including but not limited to blades, brushes, belts, light bulbs and/or bat-
teries. This warranty covers defects in material or workmanship only. It does
not cover normal wear and tear, failure due to abuse/misuse, or defects caused
by careless or accidental mishandling. If this Benchmark product is used for
commercial or rental purposes, this warranty does not apply.

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CEMENT MIXER - OWNER'S MANUAL

2620-176
EXCLUSIVE TO HOME HARDWARE
For information on the entire lineup of Benchmark power
tools visit homehardware.ca or your local Home Hardware retail store.
5AMP • 25HP
CEMENT MIXER
OWNER'S MANUAL